NA3-2: Know basic multiplication and division facts.
This means students will know basic multiplication facts are those that range from 0 x 0 = 0 to 9 x 9 = 81. The division basic facts are the inverse of the multiplication facts. So 6 x 4 = 24, 4 x 6 = 24, 24 ÷ 6 = 4 and 24 ÷ 4 = 6 are all basic facts. Students should commit their basic facts to memory as soon as they understand the meaning of the equations and can use number properties to work them out, 8 x 7 = 56 means "eight sets of seven" and can be worked out by doubling 4 x 7 = 28. Note that 56 ÷ 7 can mean "fifty-six shared among seven" or "how many sevens are in fifty-six".
investigate patterns in multiples
know division facts
know multiplication and division facts
- Derive from basic multiplication facts to solve multiplication problems with equal sets.
- Apply the commutative and distributive properties of multiplication to solve problems mentally and on paper.
- Recognise how both measurement and sharing division problems can be solved by ‘building up’ with300
use multiplication facts to solve problems
know equivalent fractions fro tenths and fifths
find half of a number
Recall groupings of twos, threes, fives, and tens that are in numbers to 100 and the resulting remainders.
practise multiplication facts
skip count in multiples of 2, 3, and 4
Students will:
- gather data about gears
- identify and represent patterns using gear ratios
- predict the force required to turn a set of gears.
Students should discover that:
- a large cog meshed with a small cog is hard to turn but makes the small cog rotate many times
- a small cog meshed with a large cog is300
use division facts in a game
apply basic facts to a graphing activity
use basic facts and mental strategies to solve multiplication problems
know multiplication facts
use arrays to find patterns in multiplication facts
- Identify multiples of single digit numbers.
solve a number sentence involving the multiplication of 5 single digit numbers
recall their basic multiplication facts.
- Use the properties of multiplication (factors) to solve problems.
- Devise and use problem solving strategies (be systematic, guess and improve).